NXP Semiconductors FS32K142URT0VLHT

Overview

FS32K142URT0VLHT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller designed for real-time control in safety-critical ECUs. It operates at up to 112 MHz (HSRUN mode), features 256 KB flash with ECC, 256 KB SRAM with ECC, and supports -40 °C to +105 °C ambient operation. It integrates FlexCAN with optional CAN-FD, LPUART/LIN, LPSPI, and CSEc security engine - deployed in body control modules and battery management systems.

For engineers reviewing the FS32K142URT0VLHT datasheet, FS32K142URT0VLHT pinout, FS32K142URT0VLHT application, or FS32K142URT0VLHT equivalent, key selection criteria include HSRUN/RUN mode switching constraints for CSEc/EEPROM operations, 100-pin LQFP package compatibility, ASIL-B capable power management, and verified FlexCAN FD timing compliance per ISO 11898-1.

Technical Context

The FS32K142URT0VLHT implements a dual-core-capable architecture with Arm Cortex-M4F core (Armv7, Thumb-2 ISA) and integrated DSP/FPU, paired with NXP's system-level MPU enforcing memory access rights across AXBS-Lite crossbar masters (Core, DMA, Ethernet). Its clock system includes SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), with configurable low-power modes (HSRUN, RUN, STOP, VLPR, VLPS).

Memory subsystem comprises 256 KB program flash (ECC-protected), 64 KB FlexNVM (ECC + EEPROM emulation), 256 KB SRAM (ECC), and 4 KB FlexRAM usable as SRAM or EEPROM - all subject to mode-dependent access restrictions: CSEc and EEPROM writes require RUN mode (80 MHz), not HSRUN (112 MHz).

Key Specifications

Pinout & Package

FS32K142URT0VLHT is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant and moisture-sensitive level 3. Pinout conforms to S32K14x family standard layout with dedicated VDD/VSS pairs, JTAG/SWD debug interface (TMS/TCK/TDO/TDI/SWCLK/SWDIO), FlexCAN differential pins (CAN_H/CAN_L), and configurable ADC input channels.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with FS32K144LRT0VLHT, FS32K142URT0VLHT offers optimized cost/performance for mid-tier ECUs with single CAN-FD; versus FS32K118LFT0VLHT, it delivers M4F compute, CSEc, and ASIL-B readiness - making it the minimum viable upgrade path for legacy M0+ designs targeting functional safety.

Availability

FS32K142URT0VLHT is available at Aetrix Electronics and suitable for automotive body electronics, battery management, and electric power steering applications requiring stable component supply across extended product lifecycles.

Supply support for FS32K142URT0VLHT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in Arm-based MCUs and functional safety certification.

The S32K1xx series targets automotive electronic control units demanding ASIL-B compliance, real-time determinism, and integrated security - FS32K142URT0VLHT specifically serves mid-range ECU applications balancing performance, memory, and feature set.

FAQ

What is the maximum operating frequency of the FS32K142URT0VLHT and under which conditions?

The FS32K142URT0VLHT achieves up to 112 MHz in HSRUN mode, but this requires VDD ≥ 2.7 V and ambient temperature ≤ +105 °C. For CSEc cryptographic operations or FlexNVM EEPROM emulation, the device must switch to RUN mode (80 MHz) - attempting these functions at 112 MHz triggers error flags per the S32K1xx datasheet Rev. 15. The FS32K142URT0VLHT's PLL configuration and voltage scaling are hardware-enforced to prevent unsafe execution.

Does the FS32K142URT0VLHT support CAN-FD, and what configuration is required?

Yes, the FS32K142URT0VLHT supports CAN-FD via its single FlexCAN module when enabled in CAN-FD mode (ISO 11898-1). Configuration requires setting the CANCTRL[FDEN] bit, configuring bit timing registers (CBT, NBTP, DBTP), and ensuring external CAN transceiver compatibility. The FS32K142URT0VLHT does not support Classic CAN-only fallback in FD mode - full FD frame handling is mandatory once enabled.

What package type and pin count does the FS32K142URT0VLHT use?

The FS32K142URT0VLHT uses a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch), with pin assignments matching the S32K14x family standard layout. This package provides 89 GPIOs, dedicated debug pins (SWD_CLK/SWD_IO), FlexCAN differential pairs, and multiple VDD/VSS pairs for noise reduction - confirmed in the S32K1xx Datasheet Rev. 15 package dimension diagrams.

How does the FS32K142URT0VLHT handle memory protection and safety compliance?

The FS32K142URT0VLHT implements NXP's system-level MPU at the AXBS-Lite crossbar switch, assigning memory access rights per master (CPU, DMA, Ethernet). This enforces ASIL-B–capable isolation without relying on Arm Core MPU. Combined with ECC on flash/SRAM, CRC module, WDOG/EWM, and CSEc, the FS32K142URT0VLHT meets ISO 26262 requirements for safety mechanisms in automotive ECUs.

Can the FS32K142URT0VLHT execute EEPROM emulation and security functions simultaneously?

No - the FS32K142URT0VLHT cannot execute CSEc (security) operations and FlexNVM EEPROM emulation simultaneously in HSRUN mode (112 MHz). Both functions trigger error flags if attempted at full speed. The device must transition to RUN mode (80 MHz) to safely perform either function, as explicitly stated in the S32K1xx Datasheet Rev. 15 Feature section and Block Diagram notes. This is a hardware-enforced constraint, not a software limitation.